Medicament ampulla



Dec. 28 1926.

1,612,116 w. o. HEUBLElN MEDI GAMENT AMPULLA Filed March 112, 1925Patented Dee. 2S? lge.;

Wil

WILHELM OSKAR HEJBLEN,

F FRANKFORT-ON-THE-MAIN, GERMANY.

MEBICAFINT AMP'ULLA.

Application iled March 12, 1925, Serial No. M335, and in Great BritainFebruary 2, 1925.

This invention relates to ampullae in which accurately closed Quantitiesot liquid medicaments are contained and which generally comprise severalcompartments separated from one another by easily brealrable partitionsso that the dry or gaseous substances may be mixed shortly before usewith liquid solvents or other gases and dry substances.

It the liquid medicament has to be withdrawn from such ampullte by meansot a syringe for injectiom this is easy as the injection needle forms along probosciditorm body which can be inserted down to the bottom ot alongl ampulla even through narrow openings. lt however the liquidmedicament has to be withdrawn by means o'r' a simple piston syringe ascommonly iis-edior rinsing cavities in the body an intermediate vesselis required which is often not at disposal at disintected state.

According` to the invention the ampnlla is 1provided at the end which isto be opened, prior to the use with a tubular extension for holding andguiding hermetically the front end or the entire cylinder ot a pistonsyringe. On the bottom of the ampulla which has to be broken and whichmerges into the tubular extension an upwardly directed breakingr leveris preferably mounted which is made in a shape known per se for ampulleecomprising several compartments and the free end et which lever may beimprisonedL7 in a manner known per se in a narrowing oi the ampulla. Anarrangement, which from the point ot view ot hygienics is especiallyadvantageous, can be obtained if in the. tubular extension of theampulla a syringe cylinder oi the .simplest kind is removably locatedbut so that it is hermetically seal-ed, said cylinder containing` apiston made for instance of wood and designed to be used only once. Adevice is thus obtained which is simple to malte, easy to use andtulfills all requirements as regards cleanliness and freedom from germs.

An embodiment of the invention is shown on the accompanying drawing, inwhich:

Fig. l shows the improved ampulla.

Fig. 2 shows how the piston syringe is filled. y

Fig. 3 shows the empty anipulla.

Fig. l shows the piston syringe filled and ready for use.

Referring to the drawing, 1 is the ampulla iilled with the liquidmedicament. At the lower end of the ampulla l a tubular extension 3 isarranged, which is clearly shown in Fig. 3. The partition l between thetubular extension 3 and the ampulla l is Curved upward and carries abreaking lever 5 which is imprisoned in a narrowing 6 at the upper endot the ampulla l. lfn the tubular eXtension 3 of the ampulla l thepiston syringe, shown in Fig. 4, is inserted so that the cylinder 7 oithe syringe is accommodated in the tubular extension 3. The roundedpoint 8 of the piston syringe engages with the bottom 4 of the ampullal. When the piston syringe is inserted into the tubular eXtension 3 otthe ampulla the piston 9 is pushed home and then a thin cover 11 forinstance made from acetylcellulose which has previously been softened ina solvent, is fixed over the rear end ot the tubular extension 3 and thehandle 10 ot' the piston 9. Any other means, known per se, may evidentlybe used for airtightly closing the tubular extension.

The making ready ot the piston syringe shown in Fig. 4 from thecondition shown in l is carried out as tollowsz- The point 12 of theampulla is broken off whereby the free end oi' the breaking lever 5becomes accessible. The lever 5 is then pushed to the side whereby thehollow partition 4 is broken. The cover 11 over the handle l0 of piston9 is cut oil3 and by pulling back ot the piston 9 the liquid medicament2 is sucked into the cylinder 7 of the syringe. This sucking in of theliquid medicament trom the ampulla into the cylinder 7 is illustrated inFig. 2. As soon as the liquid medicament 2 has been sucked into thepistonsyringe this syringe is removed from the tubular extension 3 sothat an empty ampulla as shown in Fig. 3, remains and a filled syringeready for use, shown in Fig. 4.

rihe airtight insertion and covering of the piston syringe into thetubular extension 3 of the ampulla may evidently be carried out in anyother convenient manner.

l cla-im:-

1. An ampulla for the easy withdrawing` oi" a liquid medicament torpiston syringes, comprising in combination with the ampulla proper? atubular extension at the rear end oft' the ampulla and open at the rea-rend, a piston syringe accommodated in this tubular extension and a coverof suitable mouldable and easily destructible material placed over theopen end of said tubular extension.

2. An ampulla Jfor the easy withdrawing ot a liquid medicament forpiston syringes,

comprising in combination With the ainpuila proper, L tubular extensionat the rear end of the ampulla and open at the rear end, a pistonsyl-inge accommodated in this tubular extension, a, cover of suitablemouldable and easily destruotible material Closing said open end of saidtubular extension, a narrowing between said tubular extension and saidampulla propel', a narrowing in the upper p01*- ton of said anipullaproper, and a breaking 10 level' supported on said nari-owing betweensaid ainpuila and said tubular extension and extending .into Saidampuiizi and into said second menoned narrowing.

n testimony whereof I aiix my signature.

1WILHELM OSKAR HEUBLEIN.

